Mechanics

INTERMITTANT START PROBLEM

2000 SAAB 9-5

Electrical problem
2000 Saab 9-5 4 cyl Two Wheel Drive Automatic

Sometimes car won't start, when engine warm. If left for a while (increasingly longer period - now 45mins) will start again without difficulty. This doesn't occur for some time and then reappears again.
Avatar
Hajjissa
August 24, 2009.




Sometimes car won't start,

Next time it refuses to start don't wait -check if its a fuel or spark problem-do below

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it
AD

Tiny
Rasmataz
Aug 24, 2009.
U need a crankshaft position sensor if starter motor turns engine over, if no crank then u will need transmission range switch, located on top of transmission where shifter cable is connected.

Mnthny4
Oct 6, 2009.

AD